docs: def _load(self, scale=1.0):
          """Load the ABI relative spectral responses
          """
  
          LOG.debug("File: %s", str(self.requested_band_filename))
  
          data = np.genfromtxt(self.requested_band_filename,
                               unpack=True,
                               names=['wavelength',
                                      'wavenumber',
                                      'response'],
                               skip_header=2)
  
          wvl = data['wavelength'] * scale
          resp = data['response']
  
          self.rsr = {'wavelength': wvl, 'response': resp}